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Finding the Fourth Proportional to 495,278.20, 742,497.66 and 195,969.93

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Solution

The fourth proportional to 495,278.20, 742,497.66 and 195,969.93 is: 293,788.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,278.20 : 742,497.66 = 195,969.93 : x
  2. Step 2: Convert to fraction form
    495,278.20/742,497.66 = 195,969.93/x
  3. Step 3: Cross multiply
    495,278.20x = 742,497.66 × 195,969.93
  4. Step 4: Simplify right side
    495,278.20x = 145,507,216,398.71
  5. Step 5: Solve for x
    x = 145,507,216,398.71/495,278.20
  6. Step 6: Final answer
    x = 293,788.86

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.